METAL CS MOUNT LENS TO C MOUNT BLACK RING ADAPTER PRICE FOR ONE PIECE ONLY ( 1 Lot: 1 pcs 5mm C Ring ONLY..) THIS IS A "C" TO "CS" MOUNT LENS BLACK ALIMINUM ADAPTER FOR MOST TYPES OF CCTV SECURITY CAMERA AVAILABLE IN SILVER COLOR A 5 mm ADAPTER RING ATTACHES BETWEEN CAMERA AND LENS + CONVERTS A "C" MOUNT LENS FOR USE ON A "CS" MOUNT CAMERA IF YOU HAVE CS MOUNT ON YOUR CAMERA AND YOU HAVE LENS WITH "C" MOUNT ,DEFINITELY YOU NEED THE OUR ADAPTER TO PUT BETWEEN YOUR CAMERA AND LENS AVAILABLE IN SILVER COLOR METAL & AVAILABLE IN BLACK COLOR PLASTIC